Improvement in peat-machines



AIME NICHOLAS NAPOLEON AUBIN, PORTLAND;CONNECTICUT..l

' i `Late/rs PatentNo. 105,881, was August 2,1870.

IMPRQVEMENT IN FEAT-MACHINES.

The Schedulerel'erred to in these Letters Patent and making part ofthe same wah- 4I, AIM y NIcHoLAs NAPOLEON AUBIN, of Portland, `county of Middlesex, State of Connecticut, have invented an improved Machine for Sliciug and lCleaning Peat, of which the following is a specification.

'lhe nature of my inventionconsists in an improved and materially modilied` arrangement of the device for which I obtained a patent on the 28th of December last, and is intended to cleanjthe peat `from all hard `substances more thoroughly and before it reaches the interior of the grinding-machine. y

My present device cuts` the crude. peat into thin l slices, and at the same time expels" all foreign subl stances hard enough to resist the cutting action of the `revolving blades. I f

i The value of prepared peat, as a fuel, is found to `be'proportionate to its density, other conditions being of course equal, andthe acquired density of that substance proves to be, also, proportionate to the `degree of grinding and pnddling't which the crude material has been submitted. Therefore, machines de vised for preparing peat musthave their working parts soarranged as to moveiclose together, so as to thor` oughly disintegrate' the undeeomposed fibers 1 of the crudepeat. I ,y

The `bogs situated 4in .the vicinity of mountains contain stones which are not easily detect-ed inV digging,

andfwhich, finding their wayinto the grinding appa- N y ratns, seriously interfere with the process either by l breaking the knives, or, iffground, by injuriously modifyin'gthequality of -the fuel. i

V,Figure 1 is afvertical `elevation of the apparatus l with one side removed' to expose the working parts to igview.'

Figure 2 is a'plauortop view-of the saine. y .A A hopper, through which the peat is introduced by elevator-sorotherwise.`

, B B box, in which are fixed` the working parts of the apparatus. i

y c'c c grate-bars, between Which'the revolving blades 4 are made to revolve, They areseen in profile `in iig.

1 '1, andr consist in flat bars of wrought or cast-imm j y hound together by two long bolts, cl c1, and kept from each other 'ata-distance'equal to the thickness ofthe revolving blades by 'pieces'of wood or metal, sie. It

the blades, revolving lin the direction of the arrow, l

with the grate-bars, and the' peculiar shape of the latter, it will easily bek understood how peat' falling into the hopper is cut by the combined action ofthe blades and grate-bars, andhow theslicedpeat will be driven through the grating, while any hard substance will be slided oli` upon the curve c3 toward the hanging board, which 'will be pushedv back by any stone following the grate-bars, but which will return in'. position when the stone will have reached the reversed curvec. 1 1

The-hanging boardf is thus placed to fcompel lthe peat to remain exposed to the cutting'action -of the revolving blades, but yet to allow of the passage of hard bodies.

The straight pai-t c conducts peat to the front of the revolving blades, but detaches what may he remaining tothem when they come up again through the bars. e ,l

` What I claim as my invention, is

A peat-slicing and cleaning-machine, consisting in a series of grate-bars, c c, in combination with revolvs ing blades d dl d2 d d, hanging-board f, door vg, the whole constructed and operating substantially as set forth` I N. AUBIN.

Witnesses: f

FRANCES O.- HULBERT, EDWIN Ji Alluxlairr. 

